CHANGES UPON HEATING OF THE DISTRIBUTION OF AL, P-ATOMS AND SI-ATOMS IN THE SAPO-37 MOLECULAR-SIEVE

被引：18

作者：

PELTRE, MJ ^{[1
]}

MAN, PP ^{[1
]}

BRIEND, M ^{[1
]}

DEREWINSKI, M ^{[1
]}

BARTHOMEUF, D ^{[1
]}

机构：

[1] UNIV PARIS 06,CNRS,URA 1428,CHIM SURFACE LAB,F-75252 PARIS 05,FRANCE

来源：

CATALYSIS LETTERS | 1992年 / 16卷 / 1-2期

关键词：

SI-29; NMR; SAPO-37; MOLECULAR SIEVE; FRAMEWORK ATOM DISTRIBUTION;

D O I：

10.1007/BF00764362

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A drastic change in the environment of Si atoms in SAPO-37 after heating at 1173 K is seen in the Si-29 MAS NMR spectrum. This suggests a modification of the location of Si, Al and P atoms. Three main phases would coexist in large amounts in the faujasite structure, the SAPO-37 originating phase, pure SiO4 islands and an aluminosilicate phase comparable to Si-Al faujasite.

引用

页码：123 / 128

页数：6

共 15 条

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